* valops.c (value_assign): Respect parent offset when

[deliverable/binutils-gdb.git] / gdb / m68k-tdep.c

diff --git a/gdb/m68k-tdep.c b/gdb/m68k-tdep.c
index 213431f9f1018f89f24aff4eae9791dbf9fb335b..7a49c23d3bd69ddf51d62cac167825315e700301 100644 (file)
--- a/gdb/m68k-tdep.c
+++ b/gdb/m68k-tdep.c
@@ -495,6 +495,7 @@ m68k_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
                      CORE_ADDR struct_addr)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   gdb_byte buf[4];
   int i;
 
@@ -522,17 +523,17 @@ m68k_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
   /* Store struct value address.  */
   if (struct_return)
     {
-      store_unsigned_integer (buf, 4, struct_addr);
+      store_unsigned_integer (buf, 4, byte_order, struct_addr);
       regcache_cooked_write (regcache, tdep->struct_value_regnum, buf);
     }
 
   /* Store return address.  */
   sp -= 4;
-  store_unsigned_integer (buf, 4, bp_addr);
+  store_unsigned_integer (buf, 4, byte_order, bp_addr);
   write_memory (sp, buf, 4);
 
   /* Finally, update the stack pointer...  */
-  store_unsigned_integer (buf, 4, sp);
+  store_unsigned_integer (buf, 4, byte_order, sp);
   regcache_cooked_write (regcache, M68K_SP_REGNUM, buf);
 
   /* ...and fake a frame pointer.  */
@@ -613,15 +614,17 @@ m68k_alloc_frame_cache (void)
    Otherwise, return PC.  */
 
 static CORE_ADDR
-m68k_analyze_frame_setup (CORE_ADDR pc, CORE_ADDR current_pc,
+m68k_analyze_frame_setup (struct gdbarch *gdbarch,
+                         CORE_ADDR pc, CORE_ADDR current_pc,
                          struct m68k_frame_cache *cache)
 {
+  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   int op;
 
   if (pc >= current_pc)
     return current_pc;
 
-  op = read_memory_unsigned_integer (pc, 2);
+  op = read_memory_unsigned_integer (pc, 2, byte_order);
 
   if (op == P_LINKW_FP || op == P_LINKL_FP || op == P_PEA_FP)
     {
@@ -631,14 +634,14 @@ m68k_analyze_frame_setup (CORE_ADDR pc, CORE_ADDR current_pc,
        {
          /* link.w %fp, #-N */
          /* link.w %fp, #0; adda.l #-N, %sp */
-         cache->locals = -read_memory_integer (pc + 2, 2);
+         cache->locals = -read_memory_integer (pc + 2, 2, byte_order);
 
          if (pc + 4 < current_pc && cache->locals == 0)
            {
-             op = read_memory_unsigned_integer (pc + 4, 2);
+             op = read_memory_unsigned_integer (pc + 4, 2, byte_order);
              if (op == P_ADDAL_SP)
                {
-                 cache->locals = read_memory_integer (pc + 6, 4);
+                 cache->locals = read_memory_integer (pc + 6, 4, byte_order);
                  return pc + 10;
                }
            }
@@ -648,7 +651,7 @@ m68k_analyze_frame_setup (CORE_ADDR pc, CORE_ADDR current_pc,
       else if (op == P_LINKL_FP)
        {
          /* link.l %fp, #-N */
-         cache->locals = -read_memory_integer (pc + 2, 4);
+         cache->locals = -read_memory_integer (pc + 2, 4, byte_order);
          return pc + 6;
        }
       else
@@ -658,7 +661,7 @@ m68k_analyze_frame_setup (CORE_ADDR pc, CORE_ADDR current_pc,
 
          if (pc + 2 < current_pc)
            {
-             op = read_memory_unsigned_integer (pc + 2, 2);
+             op = read_memory_unsigned_integer (pc + 2, 2, byte_order);
 
              if (op == P_MOVEAL_SP_FP)
                {
@@ -677,7 +680,7 @@ m68k_analyze_frame_setup (CORE_ADDR pc, CORE_ADDR current_pc,
       cache->locals = (op & 07000) == 0 ? 8 : (op & 07000) >> 9;
       if (pc + 2 < current_pc)
        {
-         op = read_memory_unsigned_integer (pc + 2, 2);
+         op = read_memory_unsigned_integer (pc + 2, 2, byte_order);
          if ((op & 0170777) == P_SUBQW_SP || (op & 0170777) == P_SUBQL_SP)
            {
              cache->locals += (op & 07000) == 0 ? 8 : (op & 07000) >> 9;
@@ -690,13 +693,13 @@ m68k_analyze_frame_setup (CORE_ADDR pc, CORE_ADDR current_pc,
     {
       /* adda.w #-N,%sp */
       /* lea (-N,%sp),%sp */
-      cache->locals = -read_memory_integer (pc + 2, 2);
+      cache->locals = -read_memory_integer (pc + 2, 2, byte_order);
       return pc + 4;
     }
   else if (op == P_ADDAL_SP)
     {
       /* adda.l #-N,%sp */
-      cache->locals = -read_memory_integer (pc + 2, 4);
+      cache->locals = -read_memory_integer (pc + 2, 4, byte_order);
       return pc + 6;
     }
 
@@ -713,6 +716,8 @@ m68k_analyze_register_saves (struct gdbarch *gdbarch, CORE_ADDR pc,
                             CORE_ADDR current_pc,
                             struct m68k_frame_cache *cache)
 {
+  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+
   if (cache->locals >= 0)
     {
       CORE_ADDR offset;
@@ -722,12 +727,12 @@ m68k_analyze_register_saves (struct gdbarch *gdbarch, CORE_ADDR pc,
       offset = -4 - cache->locals;
       while (pc < current_pc)
        {
-         op = read_memory_unsigned_integer (pc, 2);
+         op = read_memory_unsigned_integer (pc, 2, byte_order);
          if (op == P_FMOVEMX_SP
              && gdbarch_tdep (gdbarch)->fpregs_present)
            {
              /* fmovem.x REGS,-(%sp) */
-             op = read_memory_unsigned_integer (pc + 2, 2);
+             op = read_memory_unsigned_integer (pc + 2, 2, byte_order);
              if ((op & 0xff00) == 0xe000)
                {
                  mask = op & 0xff;
@@ -755,7 +760,7 @@ m68k_analyze_register_saves (struct gdbarch *gdbarch, CORE_ADDR pc,
          else if (op == P_MOVEML_SP)
            {
              /* movem.l REGS,-(%sp) */
-             mask = read_memory_unsigned_integer (pc + 2, 2);
+             mask = read_memory_unsigned_integer (pc + 2, 2, byte_order);
              for (i = 0; i < 16; i++, mask >>= 1)
                {
                  if (mask & 1)
@@ -811,15 +816,16 @@ static CORE_ADDR
 m68k_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc,
                       CORE_ADDR current_pc, struct m68k_frame_cache *cache)
 {
+  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   unsigned int op;
 
-  pc = m68k_analyze_frame_setup (pc, current_pc, cache);
+  pc = m68k_analyze_frame_setup (gdbarch, pc, current_pc, cache);
   pc = m68k_analyze_register_saves (gdbarch, pc, current_pc, cache);
   if (pc >= current_pc)
     return current_pc;
 
   /* Check for GOT setup.  */
-  op = read_memory_unsigned_integer (pc, 4);
+  op = read_memory_unsigned_integer (pc, 4, byte_order);
   if (op == P_LEA_PC_A5)
     {
       /* lea (%pc,N),%a5 */
@@ -859,6 +865,8 @@ m68k_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
 static struct m68k_frame_cache *
 m68k_frame_cache (struct frame_info *this_frame, void **this_cache)
 {
+  struct gdbarch *gdbarch = get_frame_arch (this_frame);
+  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
   struct m68k_frame_cache *cache;
   gdb_byte buf[4];
   int i;
@@ -879,7 +887,7 @@ m68k_frame_cache (struct frame_info *this_frame, void **this_cache)
      in progress when the signal occurred.  */
 
   get_frame_register (this_frame, M68K_FP_REGNUM, buf);
-  cache->base = extract_unsigned_integer (buf, 4);
+  cache->base = extract_unsigned_integer (buf, 4, byte_order);
   if (cache->base == 0)
     return cache;
 
@@ -902,7 +910,8 @@ m68k_frame_cache (struct frame_info *this_frame, void **this_cache)
         functions this might work too.  */
 
       get_frame_register (this_frame, M68K_SP_REGNUM, buf);
-      cache->base = extract_unsigned_integer (buf, 4) + cache->sp_offset;
+      cache->base = extract_unsigned_integer (buf, 4, byte_order)
+                   + cache->sp_offset;
     }
 
   /* Now that we have the base address for the stack frame we can
@@ -998,7 +1007,8 @@ m68k_get_longjmp_target (struct frame_info *frame, CORE_ADDR *pc)
   gdb_byte *buf;
   CORE_ADDR sp, jb_addr;
   struct gdbarch *gdbarch = get_frame_arch (frame);
-  struct gdbarch_tdep *tdep = gdbarch_tdep (get_frame_arch (frame));
+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
 
   if (tdep->jb_pc < 0)
     {
@@ -1015,14 +1025,15 @@ m68k_get_longjmp_target (struct frame_info *frame, CORE_ADDR *pc)
     return 0;
 
   jb_addr = extract_unsigned_integer (buf, gdbarch_ptr_bit (gdbarch)
-                                            / TARGET_CHAR_BIT);
+                                            / TARGET_CHAR_BIT, byte_order);
 
   if (target_read_memory (jb_addr + tdep->jb_pc * tdep->jb_elt_size, buf,
-                         gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT))
+                         gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT),
+                         byte_order)
     return 0;
 
   *pc = extract_unsigned_integer (buf, gdbarch_ptr_bit (gdbarch)
-                                        / TARGET_CHAR_BIT);
+                                        / TARGET_CHAR_BIT, byte_order);
   return 1;
 }
 \f
@@ -1149,7 +1160,7 @@ m68k_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
       break;
     }
 
-  tdep = xmalloc (sizeof (struct gdbarch_tdep));
+  tdep = xzalloc (sizeof (struct gdbarch_tdep));
   gdbarch = gdbarch_alloc (&info, tdep);
   tdep->fpregs_present = has_fp;
   tdep->flavour = flavour;